There are now, however I don't think there were many by that time. I think there's still a lot you can do now anyways. There are some nice courses in game design in online platforms such as Coursera or edX that you can even get for free. There are also games that offer editors that you could try; Super Mario Maker, Portal…
Hi @Elsa ! Actually I didn't. I studied Philosophy and Psychology, but most of the training I got for Level Design was internal at King. If I was 18 again though I would definitely study Game Design straight away :)